Major infrastructure changes, part 2.

* Moved helpers, common and triggers dirs into xbps-src, where
  they belong.
* Renamed the templates dir to srcpkgs, it was so redundant before.
* Make it possible to add subpkgs with no restriction in names, for
  example udev now has a subpkgs called "libgudev". Previously
  subpkgs were named "${sourcepkg}-${pkgname}".
* xbps-src: changed to look for template files in current directory.
  That means that most arguments from the targets have been removed.
* xbps-src: added a reinstall target, to remove + install.
* xbps-src: do not overwrite binpkgs by default, skip them.

And more that I forgot because it's a mega-commit that I've been
working for some days already...

--HG--
extra : convert_revision : 0f466878584d1e6895d2a234f07ea1b2d1e61b3e

srcpkgs/groff/template

@@ -0,0 +1,26 @@
+# Template file for 'groff'
+pkgname=groff
+version=1.20.1
+revision=1
+distfiles="http://ftp.gnu.org/gnu/$pkgname/$pkgname-$version.tar.gz"
+build_style=gnu_configure
+configure_args="--with-appresdir=/usr/lib/X11/app-defaults"
+short_desc="The GNU troff text-formatting system"
+maintainer="Juan RP <xtraeme@gmail.com>"
+checksum=b645878135cb620c6c417c5601bfe96172245af12045540d7344938b4c2cd805
+long_desc="
+ The Groff package contains the traditional UN*X text formatting tools troff,
+ nroff, tbl, eqn, and pic. These utilities, together with the man package,
+ are essential for displaying the online manual pages. Output can be produced
+ in a number of formats including plain ASCII and PostScript.
+
+ All the standard macro packages are supported. A number of other utilities
+ are also included together with several fonts."
+
+Add_dependency full glibc
+Add_dependency full libstdc++
+Add_dependency full bash
+Add_dependency full zlib
+Add_dependency full sed
+Add_dependency build bison
+Add_dependency build texinfo